lnk2019

问题 I am following along with the book "Introduction to 3D Game Programming with DirectX11" by Frank D. Luna. And I am getting these errors when I try and build my project. >BoxDemo.obj : error LNK2019: unresolved external symbol _D3DX11CompileFromFileW@44 referenced in function "private: void __thiscall BoxApp::BuildFX(void)" (?BuildFX@BoxApp@@AAEXXZ) >BoxDemo.obj : error LNK2019: unresolved external symbol _D3DX11CreateEffectFromMemory@20 referenced in function "private: void __thiscall BoxApp:

问题 When I add #include <fstream> and try to use std::ifstream (i.e. std::ifstream ifile(pDest)) in my library I get the following linker errors when compiling a project whih uses the library: Error 2 error LNK2019: unresolved external symbol __CrtDbgReportW referenced in function "public: wchar_t * & __thiscall std::vector<wchar_t *,class std::allocator<wchar_t *> >::operator[](unsigned int)" (??A?$vector@PA_WV?$allocator@PA_W@std@@@std@@QAEAAPA_WI@Z) C:\zipprojnotworking\CPP\7zip\UI

问题 This question already has answers here : Closed 9 years ago . Possible Duplicate: Pure virtual destructor in C++ I have two classes: the abstract "Game" class and the derived "TestGame" class. All of the functions in TestGame are implemented separately to nothing (for the sake of getting it to compile). I am only getting one error: TestGame.obj : error LNK2019: unresolved external symbol "public: virtual __thiscall Game::~Game(void)" (??1Game@@UAE@XZ) referenced in function "public: virtual _

问题 I was trying to compile a vc++ project on pclsceleton tracking but got the following errors inspite of the fact that i have already included header files for them the code for which the error gives is- // Callback: New user was detected void XN_CALLBACK_TYPE User_NewUser(xn::UserGenerator& generator, XnUserID nId, void* pCookie) { printf("New User %d\n", nId); userGenerator.GetSkeletonCap().RequestCalibration(nId, TRUE); osc::OutboundPacketStream p( osc_buffer, OUTPUT_BUFFER_SIZE ); p << osc:

问题 I know this question has been asked a lot of times already but I'm sorry, I just can't figure out what is wrong with what I've been doing. What I want is to read a DICOM image (by pixel because I have to perform operations on it) and display it on a Qt GUI. I have Windows 8 and Visual Studio 2013. I downloaded Qt opensource and also VS's plugin for it. I built Qt using cmake-gui. Then, I followed what was said on a discussion here in stackoverflow entitled "How to use DCMTK in Qt". I

问题 Using Microsoft Visual C++ I am trying to compile the file "test.cc" which is part of a small package available for free download at http://sourceforge.net/projects/clippoly/files/ The file test.cc appears as follows: // nclip: a polygon clip library // Copyright (C) 1993 University of Twente // klamer@mi.el.utwente.nl // This library is free software; you can redistribute it and/or // modify it under the terms of the GNU Library General Public // License as published by the Free Software

问题 I'm trying to do another exercise from Deitel's book. The program calculates the monthly interest and prints the new balances for each of the savers. As the exercise is part of the chapter related to dynamic memory, I'm using "new" and "delete" operators. For some reason, I get these two errors: LNK2019: unresolved external symbol WinMain@16 referenced in function ___tmainCRTStartup fatal error LNK1120: 1 unresolved externals Here is class header file. //SavingsAccount.h //Header file for

问题 I'm working on a basic application to create a Java VM and launch a Java program from C++ with JNI. However, I have some compiling errors: Error 6 error LNK2028: unresolved token (0A00000D) "extern "C" long __stdcall JNI_CreateJavaVM(struct JavaVM_ * *,void * *,void *)" (?JNI_CreateJavaVM@@$$J212YGJPAPAUJavaVM_@@PAPAXPAX@Z) referenced in function "public: bool __clrcall JarLauncher::launchJar(void)" (?launchJar@JarLauncher@@$$FQ$AAM_NXZ) Error 5 error LNK2028: unresolved token (0A00000C)

问题 I get this error, but I don't know how to fix it. I'm using Visual Studio 2013. I made the solution name MyProjectTest This is the structure of my test solution: - function.h #ifndef MY_FUNCTION_H #define MY_FUNCTION_H int multiple(int x, int y); #endif -function.cpp #include "function.h" int multiple(int x, int y){ return x*y; } - main.cpp #include <iostream> #include <cstdlib> #include "function.h" using namespace std; int main(){ int a, b; cin >> a >> b; cout << multiple(a, b) << endl;

问题 This question already has answers here : What is an undefined reference/unresolved external symbol error and how do I fix it? (32 answers) Why can templates only be implemented in the header file? (16 answers) Why do I get “unresolved external symbol” errors when using templates? [duplicate] (3 answers) Closed 6 years ago . I have written a template class, for a map/dictionary data structure, and keep getting this strange error (ERROR LNK2019:unresolved external symbol) Code: AssArray.h: